NASA and the European Space Agency are teaming up for the most ambitious unmanned space project ever launched. Across more than 2 billion miles, it will battle the bitter cold of space, thread the rings of Saturn, survive the heat of entry and brutal impact of landing, and beam pictures and data back from Titan, its largest moon.

NOVA follows this fantastic voyage to Saturn, on a quest to solve some of the greatest mysteries of this alien world. Up next, Voyage to the Mystery Moon.

Apparently it was a repeat, since the original PBS Airdate was April 4, 2006. Whatever. It’s still a pretty good story.